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A special-shaped flange and a foundation pit steel support structure using the special-shaped flange

A special-shaped flange and steel support technology, which is applied in basic structure engineering, building construction, construction, etc., can solve problems such as unsuitable thick steel pipes, increased difficulty in hoisting, and small rigidity of a single root, etc., to improve corrosion resistance, Simple construction and assembly, and the effect of improving torsional strength

Active Publication Date: 2022-07-29
JIANGSU EAST CHINA GEOLOGICAL CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the rigidity of a single support is not large enough, and its integrity is not as good as that of reinforced concrete supports.
[0005] Due to the cylindrical shape of the steel pipe support, it is difficult to overlap adjacent steel pipes, and it is not easy to achieve a stable joint form; if the outer diameter of the steel pipe is increased to increase the cross-sectional area to improve the support stiffness, it will be due to the increase in the weight of the standard section. Increased difficulty in hoisting
H-shaped steel support is limited by the small cross-sectional area, and the rigidity of a single support is smaller than that of a circular tube. It is necessary to increase the overall rigidity by combining multiple supports, but at the same time it will occupy a large amount of foundation pit space and affect civil construction.
[0006] In general, the steel pipe support is not easy to be combined horizontally, and it is not suitable to increase the rigidity by thickening the steel pipe; the H-shaped steel support has a small rigidity, and needs to be combined into a truss system, which takes up a lot of space and affects civil construction

Method used

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  • A special-shaped flange and a foundation pit steel support structure using the special-shaped flange
  • A special-shaped flange and a foundation pit steel support structure using the special-shaped flange
  • A special-shaped flange and a foundation pit steel support structure using the special-shaped flange

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Effect test

Embodiment 1

[0075] As a preferred embodiment of the special-shaped flange of the present invention, the left limit part is two first wing plates arranged on the upper and lower ends of the left side of the end plate, and the two first wing plates are connected to the end plate. Plate vertical intersection settings;

[0076] The right limiting portion is two second wing plates disposed on the upper and lower ends of the right side of the end plate, and the two second wing plates are vertically intersected with the end plate.

[0077] The upper position part is a first reinforced rib plate arranged on the upper part of the end plate, and the first reinforced rib plate is vertically intersected with the end plate;

[0078] The lower limit part is a second reinforced rib plate arranged at the lower part of the end plate, and the second reinforced rib plate is vertically intersected with the end plate.

[0079] Preferably, the end plate is a rectangular steel plate; the outer edge of the firs...

Embodiment 2

[0083] As another preferred embodiment of the special-shaped flange of the present invention, the left limiting portion is a first side plate disposed on the left side of the end plate, and the first side plate and the end plate are perpendicularly intersected. ;

[0084] The right limiting portion is a second side plate disposed on the right side of the end plate, and the second side plate and the end plate are vertically intersected.

[0085] The upper position part is an upper bottom plate arranged on the upper part of the end plate, and the upper bottom plate is vertically intersected with the end plate;

[0086] The lower limit portion is a lower bottom plate disposed at the lower part of the end plate, and the lower bottom plate is vertically intersected with the end plate.

[0087] Preferably, the end plate is a rectangular steel plate; the outer edge of the first side plate is flush with the left edge of the rectangular steel plate; the outer edge of the second side p...

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Abstract

The invention discloses a special-shaped flange and a foundation pit steel supporting structure using the special-shaped flange. The special-shaped flange comprises an end plate; a left limit part connected at the left edge of the end plate; The right limit part at the right edge of the end plate; the upper limit part connected between the left limit part and the right limit part and located on the upper part of the end plate; connected to the left limit part and the right limit The lower limit part between the parts and located at the lower part of the end plate; the limit cavity formed by the above components is used for sleeve connection with the shaped steel. The special-shaped flange of the present invention is sleeved with the rectangular steel of the corresponding specification to form an airtight reinforced box-type support beam. The structure can improve the torsional strength of the steel support, effectively prevent the support from being deformed in practical applications, and its closed structure can also significantly improve the corrosion resistance of the steel structure.

Description

technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a special-shaped flange and a foundation pit steel support structure using the special-shaped flange. Background technique [0002] At present, there are mainly two types of support systems in deep foundation pits in China: reinforced concrete support and steel support. [0003] Among them, the reinforced concrete support is made of steel bars bound into a skeleton, the formwork is filled with concrete, and the crown beam or the purlin forms an integral support system. Its advantages are high rigidity and relatively simple construction method. Its shortcomings are also more prominent, mainly in the long molding time, can not quickly play a supporting role; dismantling time-consuming and laborious, serious vibration, noise, dust pollution; materials can not be reused, not in line with the concept of modern building green environmental protection. [0004] The stee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E04B1/24E04B1/58
CPCE02D17/04E04B1/2403E04B2001/2406E04B2001/2415E04B2001/2421
Inventor 张旭东车平蔡其红胡光云李孟琳马娟
Owner JIANGSU EAST CHINA GEOLOGICAL CONSTR GROUP
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